Apparatus for making laminated strips



Feb. 9, U C; HAREN E AL APPARATUS FOR MAKING LAMINATED STRIPS Filed Nov. 7, 1940 3 Sheets-Sheet 1 Feb, 9, 1943.

U. C. HAREN ET AL APPARATUS FOR MAKING LAMINATED STRIPS Filed Nov. '7, 1940 5 Sheets-Sheet 2 Patented Feb. 9, 1943 UNITED STATES APPARATUS FOR MAKING LAMINATED STRIPS Urban 0. Haren, Akron, and John P. Sam Kent,

Ohio, assignors to The B. F. Goodrich Company, New York, N. Y., a corporation of New York Application November 7, 1940, Serial No. 364,664

9 Claims.

This invention relates to the art of makin laminated strips of pliable material, and is especially useful in making laminated strips of rubber and fabric or other adhesive material having stepped-01f or imbricated ends with the ends of the laminations bias cut and the strips of uniform length. Such strips have use in the manufacture of pneumatic tires and other articles in the rubber industry.

Heretofore such strips have been made by hand or by apparatus construced according to the pat ent of Matthias No. 1,667,009 of April 24, 1928, and whereas cutting and assembling the strips by hand was a slow operation and the strips so produced exhibited considerable variation in dimensions, the manufacture of the strips on the Matthias machine required a difierent machine for each different length of strip desired.

The present invention aims to overcome the difficulties heretofore experienced and to improve the Matthias machine.

The principal objects of the invention are to provide for accurately forming laminated strips of different lengths on the same apparatus, to provide quick adjustability to different size strips, to provide uniformity in the quality of product, and to provide for facilitating the operation.

These and other objects will appear from the following description and the accompanying drawings.

Of the drawings Fig. 1 is a side elevation of the apparatus in its preferred form with the strip material passing therethrough, parts of the strips and of the conveyor belts being broken away.

Fig. 2 is an end elevation of the same looking from the right side of Fig. 1, parts of the strips and parts of the apparatus being broken away.

Fig. 3 is a detail sectional View of a bearing thereof, taken on line 33 of Fig. 1.

Fig. 4 is a detail face view of one of the strip guides, taken on line 44 of Fig. 1.

Fig. 5 is a detail view of mechanism for clamping an end of the strip to a drum, taken on line 5--5 of Fig. 1, parts being broken away.

Fig. 6 is a detail cross-sectional view of the knife, taken on line 6-6 of Fig. 2

Fig. '7 is a detail View thereof, taken on line 'I--'! of Fig. 6.

Fig. 8 is a detail sectional View taken on line 8-8 of Fig. 5.

Fig. 9 is a detail sectional view taken on line 9-9 of Fig. 5.

Fig. 10 is a detail view of the knife driving clutch, parts being broken away.

Fig. 11 is a sectional view of the mechanism shown in Fig. 10, taken on line II-II thereof, parts being broken away.

Fig. 12 is a sectional View of the clutch taken on line I2-I2 of Fig. 10.

Fig. 13 isa detail sectional view showing the shock-absorbing mechanism, taken on line I3I 3 of Fig. 2.

Fig. 14 is a detail sectional View of the shockabsorbing mechanism, taken on line I4I4 of Fig. 2.

Fig. 15 is a diagrammatic plan view of the clutch and shock-absorber mechanism.

Fig. 16is a diagrammatic drawing showing the gearing. v

The invention generally comprises a plurality of rotatable platen drumswith means for guiding the various strip materials to their faces and means for driving all of the drums at any desired surface speed, and a flying cutter for cooperation with each drum to sever the strip passing thereover on the bias, together with means for driving the flying cutters at the same surface speeds as thedrums and for stopping and starting movement thereof between cutting operations in timed relation to advance of the strips so as to out different lengths of strips with the same platens and cutters. Means is also provided for guiding the strips and for holding free ends thereof into contact with the platens.

Referring to the drawings, the numeral Ill designates the bed of the machine to which are secured vertical horizontally spaced frame members II, I2 between which a plurality of drumlike platens I3, I4, I5 are adjustably mounted, on shafts I6, I1, IB respectiVely, for rotation. Each shaft is fixed to its drum and rotatably mounted in bearings adjustable toward and from a neighboring drum as shown in Fig. 3 where the shaft I8 is rotatably mounted in a bearing IS fixed to a plat 20 which is slideable vertically with relation to the plane of the drawing along ways 2| formed on the vertical frame member II, screws 22, 23 beingprovided to adjust the plate along its ways. The shaft I3 is adjustable vertically and shafts I6 and I! are adjustable horizontally in similar manner. Strip material 36 is led over platen I3 where it meets strip material 3I led over platen I4. By adjustment of their bearings the platens I-3 and HI may be adjusted to press the two strips therebetween. The assembled strips 30, 3| pass around platen {4 where they meet a strip 32 led about platen i5, and by vertical adjustment of platen I'5 the three strips are pressed together and pass from the machine. Shafts IS, IT, I8 have intermeshing gears 33, 34, 35 of the same size fixed thereto respectively, and-the platens are the same pitch diameter as the gears, so that the platens operate in unison. The arrangement is such that gear 35 meshes with'and drives gear 34 which in turn meshes'with and drives'gear 33.

The mechanism for supporting the cutters is as follows: A shaft 40 is rotatably mounted directly above platen I4, and parallel thereto, in bearings 4|, 42 vertically adjustable on frame members II, I2. A flying cutter support 43 of skeletal form is adjustably fixed to the shaft and supports oppositely disposed helical cutter blades 44, 45, adapted to be pressed against platen I4 to cut the strip on the bias. Clamp screws 45 provide means for clamping the cutters in any position circumferentially of the shaft. A similar fiying cutter support 41 is mounted on a shaft 18 directly above platen I3 and a third cutter support 49 is similarly mounted on a shaft 50 below platen I3 and for cooperation with platen I5 to cut the strip 32. Shafts 40, 48 and 53 are adapted to be driven at the same speed and with the cutters they support traveling at the same surface speed as the platens I3, I4, I5. For this purpose shafts 40 and 48 have equal gears 55, 55 fixed thereto respectively and meshing with each other, and shaft 50 has a similar gear 51 fixed thereto. A similar idler gear 58 rotatable about shaft I6 meshes with gears 56 and 51. By adjustment of the cutters about their shafts, the respective cuts may be made out of step resulting in stepped or imbricated ends in the assembled strips.

Means is provided for driving the platens continuously at any desired speed corresponding to the speed of other mechanism which supplies the strip material or utilizes the plied up out strips. For this purpose, a motor (not shown) drives the driving shaft of a speed changing device 60 of the Reeves type (see Fig. 2) through a multiple V-belt drive BI, and the driven shaft 62 of the speed changing device has a pulley 63 fixed thereto which drives a similar pulley 54 fixed to a shaft 65 through belts 65. Shaft 55 has a pinion 61 fixed thereto within a housing 68 of a geared speed reducer where it engages a gear 59 fixed to a shaft I0. Shaft I has a pinion TI fixed thereto which engages gear 35, previously described, and through gear train 35, 34, 33 drives the platens continuously. An idler gear I2 on shaft 50 also meshes with gears 33 and 35 to reduce multiplied back-lash, all of the gears 33, 34, 35 and I2 having the same number of teeth.

For driving the cutter supports at the same surface speed as the platens, but intermittently, a horizontal shaft I (see Figs. and 16) has a gear I6 rotatably mounted thereon over a spider TI fixed thereto (see Fig. 11). The gear I6 has inwardly extending lugs 18 which extend between the legs of the spider and are cushioned therefrom circumferentially by coil springs I9. The springs permit limited circumferential motion of the gear with respect to the shaft and absorb shocks. fixed to shaft (see Figs. 1 and 2) and drives the cutter supports through gear train 51, 58, 56, previously described. A quill 80 is rotatably mounted on shaft I5 and has a gear 3| fixed thereto which is of equal size with gear 16 and meshes with the constantly driven gear 12 which drives the cutter supports (see Fig. 16) through gear train i2, 51, 58, 55, 55. The quill is formed Gear I5 meshes with gear 51 to provide the female driving member 82 of a roller clutch. The male member 33 thereof is fixed to the shaft I5 and has flats 84 formed thereon for clearing driving rollers 85 (see Fig. 12). A cage ring 85 separates the rollers and holds them in properly spaced positions. tension coil spring 8'! has one end fixed to the cage ring 86 and the other end fixed to clutch member 33 and normally holds the cage ring into engaged or driving position. A detent finger 90 is fixed to a rock shaft 9I (see Figs. 1, 15 and 16) in a position to engage a shoulder 92 on cage 85 Anexto hold the cage in non-engaging position against the tension of spring 81. The arrangement is such that by rocking the rock shaft SI the detent may be lifted clear of the shoulder 92 whereupon the coil spring 8'! will engage the clutch and shaft 15 will be driven, driving the cutter supports at the same surface speed as the platens, and by return rocking movement of the rock shaft, the notch 92 will engage the detent and release the clutch, stopping rotation of the cutter supports while the platens continue to rotate.

For actuating the detent 90 and thereby initiating cutting of the strips in timed relation with their advance whereby length of the strips is controlled, a gear pinion I00 (see Figs. 1 and 16) is fixed to constantly driven shaft I0, previously described, and meshes with a gear I0 I on the driving shaft I02 of a variable speed control unit I03, of the Reeves type. The driven shaft I04 of the control unit I03 has a cam I05 fixed thereto. A tappet I06 is pivotally mounted on rock shaft 9| in a position to engage cam I05. An arm I 06a is fixed to tappet I06 and a coil spring I06b acting against arm Iflfia, urges the arm inv a direction to release the detent 90 from the shoulder 92 of the clutch cage 86. A compression coil spring I0! is mounted between detent 90 and tappet I06 and a bolt I0'Ia passing through the spring limits movement of tappet I06 with respect to detent 90. The arrangement is such that when a notch I08 in the cam I 05 arrives opposite the point of contact with tappet I05 the tappet is deflected into the notch I08 by spring I06b and the bolt; I 01a pulls detent 90 from under shoulder 92 causing the clutch to engage until a raised part of cam I05 forces the tappet away and the detent is forced into engagement with the shoulder 92 to disengage the clutch. By manipulating a hand Wheel III) on the Reeves speed changing unit which adjusts the speed ratio of shaft I02 to shaft I04 to positions indicated by a pointer III over a stationary scale I I2, the speed changing unit I03 may be set for cutting any desired length of strip.

For stopping rotation of shaft I5 which drives the cutters in a determinate position with absorption of inertia when clutch members 82, 03 are disengaged, a disc I I3 is fixed to the shaft I5 (see Figs. 2, l3, and 15). An arm H4 is rotatably mounted on the shaft adjacent the disc. Arm I I4 has a lever I I5 fixed thereto (see Fig. 14) which rests against a plunger H6 fitted in a cylinder I I! fixed to disc II3. Cylinder III forms part of an oil and spring check of which the cylinder forms the compression chamber and the casing II8 provides an oil storage chamber. A coil spring H9 in the cylinder holds the plunger normally in its outer position and arm H4 in its advanced position with relation to disc I I3. A valve I20 provides a restricted passage from the cylinder to the casing H8 and may be adjusted by a screw I2! .whi'ch adjusts the tension of a coil spring I22 which holds the valve against its seat. Return of oil through the plunger H6 is provided for by a check valve I 23 in the plunger. An arm I24 fixed to rock shaft 9| normally stands in the way of a projection I25 on the periphery of disc H3 and also in the way of the end of arm II4. Arm II4 normally stands in advance of projection I25. As disc I I3 rotates, the arm I24 first encounters arm II4 which it moves, compressing spring H9 and slowly forcing oil from cylinder Ill through valve I20 thereby absorbing the inertia and when projection I25 encounters arm I24, the disc H3 and shaft 15 to which it is fixed are positively stopped. Any rebound of the disc H3 is prevented by a pawl I25 pivoted on a stationary part of the machine and urged toward the periphery of the disc by a coil spring I21. A notch I23 in disc [I3 is opposite the pawl when the projection I25 reaches arm I24 and the pawl engages the notch preventing reverse movement of the disc. Further cushioning of disc I I3 is provided for by a strike plate I38 hinged, as at I3I to the end of arm I25 and supported therefrom by a coil spring I32. A screw I33 passing through the spring and strike plate is provided to adjust the initial tension on the spring.

As arm I24 is fixed to the rock shaft 95 to which detent 9B is fixed, when the shaft 9! is rocked to release the clutch cage and engage the clutch to drive shaft 15 and the cutters at the same surface speed as the speed of the platens the arm I24 is moved from under the projection I25 permitting rotation of shaft 15 and therefore movement of the cutters until the arm is returned to its original position.

For guiding strip material to the rotatable platens a guide plate I45, illustrated in Fig. 4, is adjustably mounted on a rod I4I extending from frame member I2, adjacent platen I3 and is fixed to the rod by clamp screws I32. The guide plate has marginal fixed fences, I 43, I44 and. a movable fence 545 secured thereto by clamp screws I46 passing through elongated slots I41. Rods I48, I49 passing through the fences retain the strip material in place. The guide plate may be adjusted to present a strip of any width within its capacity at any position axially of the platen. A similar guide plate I53 is mounted adjacent platen I4 and a similar guide plate II is mounted adjacent platen I5.

A swinging arm I52, pivoted at I53 to frame member I2, carries a roller I54 for pressing the strip 39 against platen I3. A similar roller I55 is pivotally mounted at I53 on frame member I2 to press strip 3| against platen I4. A third pressure roller I51 is mounted on a bell-crank I58, pivoted to the frame member I2 at I59 adjacent platen I5 to press the strip 32 thereagainst. A weight I69 on the bell crank acts to press this roll upwardly. Guide rolls H55, I38 are rotatably mounted between frame members II, I2 to guide strip 32. A guide roll I5! is rotatably mounted between frame members I I, I2 to guide one end of a conveyor belt I38 which delivers strip 3I to the machine.

For delivering the laminated strip material from the machine a roller I (see Fig. 1) is fixed to a shaft Ill journaled in frame members I I, I2 and supports one end of a conveyor belt I12. A gear I13 is fixed to shaft HI and meshes with constantly driven gear H which drives the conveyor continuously.

To provide for replacement of the cutting blades and to cushion them, the rotatable cutter supports are provided with removable cushioning and blade tensioning means. These are alike on each cutter support and only one of them will be described. Referring to Figs. 6 and '1, the cutter support 43 is formed with a channel I80 extending helically along its cutting face. A channel-shaped strip I3I of vulcanized cushion rubber is mounted in the groove, and a grooved strip I82 of soft metal is mounted in the groove of the rubber strip thereover. The metal strip extends at each end beyond the face of the cutter support and into a socket I83 formed in a bracket I94. Bracket I34 is pivotally mounted about a pin I85 fixed to the cutter support. A cotter pin I86 passes through the end of the strip I82 and bracket I 34 to form a pivoted connection. A tension screw I81 passes through an aperture in the bracket and is threaded through a plate I88 fixed to the cutter support. The arrangement is such that after the metal strip is secured to a bracket I84 at each end of the cutter support by cotter pins I86, screws I81 may be adjusted to tension it longitudinally. The cutter blade I90 is formed of tempered strip steel sharpened to V-shape at one longitudinal edge. Its opposite edge is fitted in the groove of strip I82. For securing its ends at each end of the cutter support a post I9I is pivotally mounted on pin I85 and extends through a clearance opening in bracket I84. A dove-tailed socket 192 is formed in the top of the post to receive a loop I93 formed at the end of the blade. A filler block I94 of metal is inserted in the loop to prevent collapse thereof and a cotter pin I95 extends through the post above the loop to hold it radially of the cutter support. A tension screw I93 is threaded through plate I38 and extends through a clearance opening in the lower end of the post. A coil spring I91 encircles the screw I95 between the post and the head of the screw. By tightening the screw I36, the coil spring I91 is compressed and the post I9I is moved about pivot I85 to tension the blade.

When the strip material is not sufficiently adhesive to insure adherence thereof to the platens, means may be provided to clamp the leading ends of the strips to the platens so that they are positively fed to the assembling positions. Each of the platens may be supplied with clamping means for this purpose but as all are alike, only one of them will be described as follows: Referring to Figs. 2, 5, 8 and 9, an annular locking ring 200 having radially extending notches 2 0I in its exposed face is secured to one margin of the platen I4. An arm 202 (see Figs. 5 and 9) is rotatably mounted about shaft I1 to which platen I4 is fixed and. extends radially of the shaft adjacent the locking ring. A dog 293 is pivotally mounted at 204 on the outer end of arm 202 (see Fig. 9). The dog is of bell-crank form and has a tail 205 extending axially away from the drum and a head 206 extending in the opposite direction for engaging the notches in the locking ring. A tension screw 281 extends through a clearance opening in the tail of the dog and is fixed to arm 202. A compression coil spring encircles the screw and normally presses the dog into engagement with the locking ring so that arm 202 is normally rotated about shaft I1 by the drum I4.

The outer end of arm 202 is slotted axially of the drum. A pair of toggle levers 208, 209 (see Fig. 5) are pivoted at their centers, as at 2I0, 2 to the arm 202 at one side of the slot and a similar pair are similarly pivoted at the other side of the slot. Their outer ends are pivoted at 2I2, 2|3 to a roller block 214 and their inner ends are pivoted at 2I5, 2I6 to a similar roller block 2I1. Block 2I4 has a cam roller 2I8 at its outer end and a clamping finger 2I9 at its inner end. Block 2I'I has a cam roller 220 on its outer end. A leaf spring 22I fixed to arm 202 engages the lower rounded ends of the toggle levers 208, 209 and. is convexly bowed so as to retain them frictionally at either limit of their pivoted movement. The arrangement is such that when the block 2I4 is moved toward platen I4 its clamping finger 2!!) is moved over the strip 3I on the face of the drum and is clamped thereagainst by spring 22l and at the same time roller block 2!! is moved away from the drum. When roller block Zl'i is moved toward the drum finger 2l9 is withdrawn and the strip is released. Due to the toggle construction and the shape of the spring 22! contact with the most extended cam roller tending to cause movement of the roller toward the drum will cause the position of the toggle mechanism to change by a snap movement. At a position where the strip material first contacts the platen a stationary cam 230 (see Figs. 2 and 9) is fixed to a frame member I! in the path of cam roller H8 and as the roller contacts therewith the roller is forced toward the platen causing the clamp finger to engage over the leading end of the strip. At any desired further position in the path of rotation, as where the leading end enters the bight of two platens and meets another strip a second fixed cam 23| (see Fig. 1) is mounted on the frame in a position to engage and deflect cam roller 220 to release the strip.

Stationary cam 236 previously mentioned is mounted on a block 232 (see Figs. 5, 8, and 9) in which a rock-shaft; 233 is rotatably mounted on an axis radial to the axis of the platen M. An arm 234 is fixed to the shaft and extends radially therefrom so that in one position shown in full lines in Fig. 9, it engages the passing tail 205 of the locking dog and releases the dog from the platen, stopping rotation of arm 292, and in a second position, shown in dot and dash lines, the arm clears the tail of the dog. A torsional coil spring 235 encircles the shaft 233 and has its ends fixed to the shaft 233 and the block 232 respectively. The arrangement i such that the arm 234 is normally held in the position to engage the tail of the dog as shown in Fig. 9.

A roller arm 233 (see Figs. 5 and 8) is fixed to the shaft 233 and has a roller 23'! mounted on its outer end. A cam bar 233 is adjustably fixed to the cutter supporting shaft 43 (see Figs. 2 and 8), as by clamp screws 23S, and has an outwardly turned end with an inclined cam surface 245. Where the cutter support has more than one cutter, as shown, a similar cam surface is provided for each cutter and, as illustrated, the cutter support has two opposite cutters and the cam bar has corresponding cams at opposite ends thereof. The cam surfaces are in the path of roller arm 236 when it is in the 1 full line position of Fig. 8 and clear it in dot and drawing arm 234 from the path of the tail 2% of dog 233 and the dog 233 is released from the platen and the arm 2532' stops rotating beyond this station with the drum. As the finger 2l9 also holds the arm 202 to the platen when it is clamping the strip to the drum the cam surface 230 is so located that the finger 219 is off the surface of the platen at the time that the dog 205 is released and arm 232 is thus stopped with the cam roller 2|8 just contacting with cam 233 and ready to engage the finger 253 over the face of the platen. Arm 238 is so set with relation to a cutter blade that as the cutter blade contacts the strip of material, the arm 2'33 releases the arm 234 permitting the dog 205 to engage the platen. Thi starts the arm 202 in motion and as the roller 2!!! passes the cam 239 the finger H9 is engaged over the leading end of strip in the desired alignment.

the strip Where it remains until the roller 220 engages cam surface 23! and releases the finger. The dog 203 still engages the platen however and the arm 232 therefor continues rotating throughout the remaining portion of the revolutions of the platen. When the next cut is to be made by approach of the cutter support the dog is again engaged. In the meantime the platen :4 may have rotated more than a single revolution depending upon the length of the strips to be cut, and the arm 2'02 remains in position to engage the leading end of the next strip to be cut due to the fact that the cutter support and cam surface 249 are not in motion. The operation of the clamping mechanism is as follows: As the drum I4 is constantly rotated, finger 213 is clamped over the leading end of the strip 3i at the cutting position over the surface of the drum by contact of roller 2l8 with stationary cam 233 and is released by contact of roller 223 with stationary cam 23! at the position where the leading end of the strip meets the surface of platen it. This movement is independent of the cutter operation and takes place regularly at each revolution of drum l4. When finger H9 is withdrawn, arm 202 would stop rotating were it not for dog 296 which remains engaged with notch 2 throughout substantially a complete revolution of the drum until it is withdrawn by contact of the tail 235 with arm 234 at the cutting position as shown in Fig. 9. The arm 232 will stop at this position while the drum l4 continues to rotate unless roller 23'! happens to be depressed to the dot and dash position of Fig. 8 by rotation of the cutter and its cam arm 233 at the moment the tail 235 reaches the illustrated position, in which event the dog 203 would remain engaged with the notch 29! and the arm 202 would continue its revolution with drum M through another revolution. With the exception of the coincident arrival of the dog 293 at the position of Fig. 9 and the depression of arm 235 by passing of cam arm 238, the tail of the dog 203 is depressed by contact of arm 234 at the position of Fig. 9, as there shown, and arm 202 is stopped until cam arm 233 withdraws, in passing, arm 234 to the dot and dash position, whereupon the dog 203 engages a notch 23] of the constantly rotating drum and arm 202 is carried along with the drum. As the roller 2l3 passes the stationary cam 233 it is forced toward the drum and advances the finger 2i 9 over the new leading end of the strip which it clamps until released by contact of roller 223 with stationary cam 23!.

Arms 250, 25| carrying similar strip clamping mechanism are rotatably mounted on shafts l6 and i8 respectively adjacent platens I3 and I5 and operate in the same manner, and cam bars 252, 253, corresponding to cam bar 238 are adjustably mounted on shafts 48 and 5! respecto locking rings 254, 255 of platens I3 and I5 tively for releasing and setting the locking dogs respectively. The dog-releasing arms corresponding to arm 234 are shown at 256, 251, and stationary cams for releasing the clamping fingers are shown at 258, 259.

The operation of the specific mechanism will be apparent from the foregoing description. The general operation of the apparatus is as follows: Strip 33 is started through the guide Mil and its end is placed over the platen l3, the roller I54 holding it in driven relation thereto and the guide I43 being adjusted to deliver the Strip 3| is led through guide W8 and strip 32 is led through guide it! which are also properly adjusted. Hand wheel HE! is then adjusted to bring the pointer Hi to the position on the scale H2 indicating the desired length of the laminated cut strips. The motor which drives the machine is then started and the strips are automatically cut to length assembled in laminated form and delivered over belt l'iZ. Due to setting of the cutter holders on their shafts in stepped relation to each other, the ends of the plies of material are stepped off to assist in splicing them in annular form in the tire or other article. Where the material is adhesive, the laminated strips will come from the machine spliced end to end and may be separated when desired.

Due to the novel construction of the apparatus laminated strips of material of any desired length having stepped or imbricated ends may be automatically produced.

Variations may be made without departing from the scope of the invention as it is defined by the following claims.

We claim:

1. Apparatus for cutting a strip of pliable ma-- terial, said apparatus comprising a continuously rotatable support for progressively advancing strip material, driving means therefor, a cutting member adapted by rolling contact with said support successively to sever the strip material as it is advanced by pressing it against the moving support, means for advancing said cutting member with said support while said material is being severed, and means for adjustably interrupting the advance of said cutting member between successive cuts to regulate the length of the cut strips.

2. Apparatus for cutting a strip of material, said apparatus comprising a continuously rotatable support for progressively advancing strip material, driving means for rotating the support, a cutting member adapted successively to sever the strip material by pressing it against the rotating support as it is advanced, means for advancing said cutting member with said support while said material is being severed, and means for adjustably interrupting the advance of said cutting member between successive cuts to regulate the length of the cut strips.

3. Apparatus for cutting a strip of material, said apparatus comprising a continuously rotatable support for progressively advancing strip material, driving means for rotating the support, a rotatable cutting member adapted successively to sever the strip material by pressing it against the rotating support as it is advanced, means for rotating said cutting member in rolling contact with said support while said material is being severed, and means for adjustably interrupting the rotation of said cutting member be tween successive cuts to regulate the length of the cut strips.

4. Apparatus for cutting a strip of material, said apparatus comprising a continuously rotatable platen for progressively advancing strip material, driving means for continuously rotating said support, a rotatable cutting member adapted successively to sever the strip material by rolling contact with said platen, means for driving said cutting member in synchronism with said platen during a cutting operation, means for interrupting rotation of said cutting member between successive cuts, and adjustable timing means for regulating the distance between cuts.

5. Apparatus for cutting a strip of material,

said apparatus comprising a rotatable platen for progressively advancing strip material, driving means for continuously rotating said platen, a rotatable cutting member adapted successively to sever the strip material by rolling contact with said platen, means for driving said cutting member at the same surface speed as said platen during a cutting operation, means for interrupting rotation of said cutting member between successive cuts, adjustable timing means for regulating the distance between cuts, and means for clamping the leading end of the cut strips to the platen during at least a part of a revolution of the platen.

6. Apparatus for cutting a strip of material, said apparatus comprising a rotatable platen for progressively advancing strip material past a cutting station to an assembling station, driving means for continuously rotating said platen, a rotatable cutting member adapted successively to sever the strip material by rolling contact with said platen, means for driving said cutting member at the same surface speed as said platen during a cutting operation, means for interrupting rotation of said cutting member between successive cuts, adjustable timing means for regulating the distance between cuts, means for clamping the strip material to the platen adjacent each cut, and means at said assembling station for releasing said clamping means.

'7. Apparatus for cutting a strip of material, said apparatus comprising a rotatable platen for progressively advancing strip material past a cutting station to an assembling station, driving means for continuously rotating said support, means at the cutting station for severing the strip material as it is advanced, means for clamping the strip material to the platen at the cutting station, and means at the assembling station for releasing said clamping means without interrupting the advance of the cut material.

8. Apparatus for cutting a strip of material, said apparatus comprising a rotatable platen for progressively advancing strip material past a cutting station to an assembling station, driving means for continuously rotating said platen, means at the cutting station for severing the strip material as it is advanced, clamping means adjacent the platen for clamping material against the platen, a rotatable support for said clamping means, locking means carried by said support for locking said support to said platen for rotative movement therewith, means at said assembling station for releasing said clamping means from the strip material, and means at the cutting station for releasing said locking means and stopping rotation of said support.

9. Apparatus for cutting a strip of pliable material, said apparatus comprising a movable support for progressively advancing strip material, driving means for continuously advancing said support in a single direction, a rotatable cutting member adapted successively to sever the strip material by rolling contact with said support as the support is advanced by pressing it against the support, means for advancing said cutting member in synchronism with said support while the material is being severed, means for adjustably interrupting the advance of said cutting member between successive cuts to regulate the length of the cut strips, and adjustable timing means for regulating the distance between cuts.

URBAN C. HAREN. JOHN P. SAPP.

his llm I I I 7 77 IIIIIIIMIILII III 1 CERTIFICATE OF CORRECTION. Patent No. 2,510,851. February 9, 19L 5.

' URBAN C. HARE-N, ET AL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiringcorrection as follows: Page 14., second column, line 62, strike out the words "to locking rings 25h, 255 of platens 15 and 15" and insert the same after "dogs" in line 65; and that the sold Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

.Signed and sealed this 50th day of March, A. n 19L 5.

7 Henry Van Arsdale, (Seal) Acting Commissioner of Patents. 

